Transparent envelope



A. W. ENGEL TRANSPARENT ENVELOPE June 6, 1933.

Filed Dec. 26, 1931 1 Patented June 6, 1933 Y *UNITEDSTATES PATENT[01121012 y ALBERT w. ENGEL, or CHICAGO, ILLiNoIs TRANsrARENT 1 niWELorE "Application 1i1ea1iecmtef 2e, 19,31. serial ivo. 533,273. f

1 1rllhe purpose of this invention isto provide an improved package Ain the form of anenvelope, employing transparent mater- `ial`such as cellophane, and providing `In the drawing 1 Figure 1 is a facelvew of an envelope 1 embodying this invention.

Figure 2 is a rear elevation of the same showing theenvelope sealed. i

Figure 3 is afront elevation ofthe en-` velope `with a portion broken out and show#- ing the sealing flaps extended and unsecured.

Figure 4 is adetail section on a larger b e 1 l n l c scale exaggeratingthe thickness of the materials and showing the Vflaps of the envelope 13G" cated at line 7-7 on" Figure 6; 1

and its liner partiallyfolded, as inthe process of sealing. 1 1

A "Figure 5" is asimilar detail section show- 1 `ing the parts 1n fully sealed relation, being taken as a section at line 5--5 on Figure2.

Figure 6 is a partial frontelevation showing a modified form of securing means.

Figure 7 isa detail section taken as indi- Figure 8 isa vertical medial sectional view of the liner. 1 1

The drawing illustrates this invention Aas" apackage designed to carry small articles of merchandise, suoli as gummed mounting corners of the general type shown in my Patent No. 852,018, and since these mounting corners are `made in a variety of shapes,

and sometimesin several different colors, it`

islan advantage to have a portion of the packagetransparent so that its contentsmay be seen readilywithout unsealing it.V The `envelopeproper1consists of a front wall, 1,

foldedover at its edges, 2, 2, formed intwo sections, 3, 3, ofthe back wall, which are adhesively securedat 4 ina lap seam. The lower end isA closed bya iap,`5,1 also adhesively sealed, and at the upper Vend there is provided a closure flap, 6, which is not gummed. ffoavoidthe use of special gums The invention con,

or sealing compounds the Lpresentilivention Y undertakes to seal the `flap,6, 'without gum ming the transparent materialto itself. V

Partly to solve tlieproblem of sealing the iap,16, and partly to` provide `an area suit- 5u able to receive printed 1 descriptive matter relating Vto the contents of the package, I` placein the transparent envelope a liner of light cardboard or othersimilar opaque'ma-` Y, terial,- having a front` leaf, 7, and aback 00 leaf, 8, integralwith the front leaf, *(,and` folded againstit. The line offold is indicated at 9, and extending upwardly from this line an opening, 10, is formed in the back leaf, `8. As` shown, this opening is triangular in outline. `When the `package iis y filled with the gummedstickers or other material the contents are inserted between the leaves, 7 and 8, of the liner, so that a portion of-said contents `becomes visible through the l0 transparent back wall, 3, of the envelope,

The `rearleaf, 8, of the liner terminates substantially at the mouth` of the* trans` parent envelope, but the front leaf, 7, is"

- longer and continues in three short sectionsli defined by folds and indicated at 11, 12 and 13 on Figure p 4. The section, 11, emerges from the mouth of the envelope un` der the flap, 6, and when these two parts are folded down against the back `wall they may be secured by means of a gummed strip, 14, which is laid over the outer face ofthe flap 6. Since the corners ofsaid flap, 6, are cut off diagonally, asindicated in Figure 3,the "umme'd undersurface of the strip, 14, may `85 e adhesively secured to the exposed triangular areas,` 11, of the part," `11.` The end por` tions ofthe strip, 14, arethen bent at right anglesto the plane` of the flap, 6v`and said flap, with the part,`11, disposed under it, is folded down flatly` againsttheback of the? envelope.l The endfportions, 143,1are thus projected forwardly past the edges of thelj' envelope. 1 i The section, 12, of thevliner, which is adjacent the section, 11, isnow folded flatly against-the back or outer surface of the flap, 6, and strip, 14, and the terminal section, 13, is folded `over the top edge of 'the "assembly and flatly against the front Wall, 1, of the envelope. The forwardly projecting end port-ions, 14a, of the strip, 14, may then be pressed against the outer face of the section,

13, and adhesively secured thereto, as indi- 5 cated in Figure 1. Thus the flap, 6, of the transparent envelope is locked between the sections, 11 and 12, of the liner member, or, more strictly, between the sealing strip, `14, and the section, 11, while these parts are held in position by securement of the ends of the strip to the section, 13, at the frontsideof the envelope. The relative position of the parts is clearly indicated in the exaggerated sectional view of Figure 5.

If desired, suitable label material or other printed matter may be displayed on the exposed face of the section, 13, as indicated in Figure 1, and, likewise, on the exposed surface of the section, 12, as shown in Fig- 263, ure 2. As will be understood, this permits of conveniently printing the liner member as a single flat sheet before it is scored orl creased for folding of the sections, 11, 12 and 13, about the flap, 6, ofthe envelope, since 253 both of the exposed faces of the leaves, 7 and 8, and the sidesA of the parts, 12 and 13, which will be exposed when the envelope is closed up, are all parts of the same surfac of the liner member.

393 If desired, instead of employing the gummed strip, 14, for sealing the envelope, this part may be omitted and a pair of wire staples, 15, may be passed through the several folded flap sections, as shown in Figure 3516, and indicated in the exaggerated sectional view, Figure 7.

While .there isshown and described herein certain specific structure embodying the invention, it will .be manifest to those skilled 4Q gin the art that various modifications and rearrangements ofthe parts may be made without departing from the spirit and the` scope of the invention, and that the same is not limited to theparticular form herein Llgshown and described, exceptin sofar as indicated by the appended claims.

I claim: Y Y 1. In combination with a transparent envelope, an opaque liner fitted therein, the 5, envelope having a flap, and the liner having a flap of three sections defined by transverse folds, the rst section being folded down to extend from the mouth of the envelope 'under the fiap thereof, the second section being gifolded upwardlly over the outside of said flap, and the third section. being folded vdownwardly t0 lie against Athe opposite side of the envelope from that against `which the `first and second sections are disposed. e f 2. In combination with a transparent envelope, an opaque liner fitted therein, the

envelope havingA a flap, and the liner having a fiap composed of a plurality of sections embracing andv enclosing the envelope flap, fjand fastenmgmeans engaging one section Yliner flapA engaging the opposite face of the envelope at the same end thereof.

5. In combination with a transparent envelope, an opaque liner fitted therein, a portion of the envelope wall being folded over a portion of said liner to interlock said parts with each other, and the liner having a. flap composed of a plurality of sections definedl by transverse folds, said sections being dis posed to overlie both sides of the transparent envelope, and means securing one of said overlying sections to the other for sealing the envelope.

6. In combination with a transparent envelope, an opaque liner fitted therein and formed with a sight opening or window to render visible a portion of the contents of the envelope, said liner including a flap composed of a plurality of sections extending from the mouth ofv the transparent envelope and defined by transverse folds with one section overlying one side of the envelope and another section overlying the opposite side, and fastening means securing said sections together for sealing the envelope.

7. In combination with a transparent envelope, an opaque linerfitted therein and.

comprising two leaves united at a fold disposed in the bottom of the envelope, one leaf having one or more sight apertures to render visible a portion of the contents of the envelope disposed between the leaves ofL the liner.

Y 8. In combination with a transparent envelope, an opaquev liner fitted therein and comprising two leaves united at a fold disposed in the bottom of the envelope, one: leaf having one or more sight apertures to render visible a portion of the contents of the envelope disposed between the leaves of the liner, said liner having portions extending from the mouth of the envelope and folded to overlie both sides of the envelope adjacent saidv mount, together with means securing said portions to each other in such overlying position.

9. In'combination with a transparent envelope, an opaque liner fitted thereiny and comprising two leaves united at a fold disposed in the bottom. of the envelope, one leaf having one or more sight apertures to render visible a portion of the contents of the envelope disposed between the leaves of the liner, said envelope having a Hap, and one leaf of the liner having a flap composedv of. a

plurality of sections definedy bytransverse folds, said sections being disposed to overlie both sides of the transparent envelope, and means securing one of said overlying sections to the other for sealing the envelope.v

10. In combination with a transparent envelope, an opaque liner fitted therein, the envelope having a flap, and the liner having a flap of three sections defined by transverse folds, the first section being folded down to extend from the mouth of the envelope under the flap thereof, the second section being folded upwardly over the outside of said flap, andthe third section being folded downwardly to lie against the opposite side of the envelope from that against which the first and second sections are disposed, said liner being composed of two plies united at a fold disposed in the bottom of the envelope,

and one ply of said liner having a window to render a portion of the contents of the envelope visible through the transparent wall of the envelope. A

11. Thecombination of an envelope and a. liner therefor, comprising two leaves united at a fold which is disposed within the ena velope at the side or end opposite its opening, one of said parts being of transparent material and the other part being of opaque of December, 1931.

material, the part of opaque material having an aperture across which the transparent material extends to form a window which renders visible the contents of the envelope carried between the two leaves of the liner.

12. The combination of an envelope and a liner therefor, comprising two leaves united at a fold disposed at the side or end of the envelope opposite its opening, one of p said parts being of transparent material, and the other part being of opaque material, the part of opaque material having an aperture extending adjacent the fold of the liner and the transparent material. of theother part extending across said aperture to form a window which renders visible the contents of the envelope carried between the two leaves of the liner adjacent said fold.

In testimony whereof, I have hereunto set my hand at Chicago, Illinois, this 22nd day ALBERT VY. ENGEL. 

